Svenska, Scania Mariella (2016) Pengaruh Variasi Fraksi Volume, Temperatur Curing Dan Post-Curing Terhadap Karakteristik Bending Komposit Polyester-Hollow Glass Microspheres IM30K. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Dengan semakin berkembanganya teknologi di bidang
material, mendorong material komposit untuk dapat digunakan
dalam aplikasi produk baik di dalam bidang otomotif dan
dirgantara, maupun dalam bidang militer. Keunggulan dari
material komposit ini adalah strength to weight ratio yang
tinggi, kekuatan, ketangguhan, dan ketahanan terhadap korosi
yang tinggi dibandingkan dengan logam. Salah satu
pengembangan material komposit adalah dengan penambahan
hollow glass microspheres (HGM) sebagai reinforcement
karena keunggulan yang dimiliki yaitu massa yang ringan,
konduktivitas thermal rendah, dan ketahanan terhadap tegangan
kompresi yang tinggi.
Penelitian ini dilakukan dengan mencampurkan resin
polyester dengan HGM. Spesimen uji bending diproduksi
sesuai dimensi ASTM D 790 dengan variasi fraksi volume
HGM 10% sampai 17% dengan penambahan 1%. Spesimen
menerima tiga perlakuan yang berbeda yaitu, spesimen kode A
dicuring pada temperatur kamar (±27°C) selama 24 jam,
spesimen kode B dicuring pada temperatur kamar lalu postcuring pada temperatur 90°C selama 5 jam, dan spesimen kode
C dicuring pada temperatur 90°C selama 5 jam. Setelah prosesii
produksi, dilakukan pengujian bending untuk mengetahui
perubahan sifat mekanik yang terjadi pada komposit.
Hasil yang didapatkan adalah tegangan bending komposit
maksimum terdapat pada fraksi volume HGM sebesar 10%
dengan nilai 126.61 Mpa pada temperatur curing 27°C.
Komposit dengan perlakuan curing 27°C selama 24 jam
memiliki nilai tegangan bending yang paling maksimal. Hal ini
dikarenakan komposit yang dicuring pada temperatur ruang
memiliki ikatan crosslink yang lebih banyak dan ikatan
interface yang lebih kuat sehingga nilai tegangan bending pada
komposit akan meningkat
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The advancement of technology in the field of materials
makes composite material to be applied in the application on
aspects such as in automotive, aerospace as well as in military.
The advantages of composite material is its high strength to
weight ratio, its capability and its firmness and high tolerance
to corrosion compared to metal. One of the composite material
developments is the addition of Hollow Glass Microsphere
(HGM) as the reinforcement due to its advantages such as airy
mass, low thermal conductivity and resistance to a high
compressive stresses.
This research is conducted by mixing the polyester
resin with HGM. The bending test specimen dimensions are
manufactured according to ASTM D 790 with fraction volume
variation on 10% to 17% with 1% addition. Specimens will
receive 3 different treatments as follows. Specimen A will be in
curing in room temperature (±27°C) in 24 hours. Specimen B
will be in curing in room temperature afterwards in post-curing
in 90°C temperature. Specimen C will be in curing for 90°C
temperature for 5 hours. After the production process, bending
test will be conducted to determine the changes of mechanical
properties within the composite.iv
The result obtained is on how the maximum composite
stress bending exists in HGM with volume of 10% with 126.61
Mpa on curing temperature of 27°C. The composite with curing
treatment of 27°C in 24 hours has the maximum stress bending
due to the curing process of its composite in the room
temperature has more crosslink binding and stronger interface
binding that makes the composite bending stress increasing
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 620.118 Sve p |
| Uncontrolled Keywords: | bending, curing, hollow glass microspheres, komposit, polyester, post-curing. |
| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL240.5 Composite materials |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 18 Mar 2020 03:08 |
| Last Modified: | 18 Mar 2020 03:08 |
| URI: | http://repository.its.ac.id/id/eprint/75496 |
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